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get_keyvalue.txt

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+DELIMITER //
+
+CREATE OR REPLACE PROCEDURE get_keyvalue(
+  IN p_tablename VARCHAR(20),
+  IN p_fieldname VARCHAR(20)
+)
+/*
+  Function   : 配合 amis 的 select 元件，取得 key-value 資料
+  Description: 從 zen_keyvalue 表獲取鍵值對資料，用於下拉選項
+               合併了原有的 zen_keyvalue 和 sys_keyvalue 表功能
+  Build Date : 2023/07/19 (MariaDB 版本)
+  
+  Modify History
+    Item Who        Date       Modify Docs
+    ==== ========== ========== ================================================
+    1    Michael    2022/05/28 初始版本
+    2    Michael    2025/07/20 改寫為 MariaDB 並最佳化(ChatGPT+DeepSeek)
+*/
+BEGIN
+  DECLARE v_count INT;
+  
+  -- 設置默認返回值
+  SELECT 0 AS code, 'ok' AS msg;
+  
+  -- 檢查指定表名和欄位名的記錄是否存在
+  SELECT COUNT(*) INTO v_count 
+  FROM zen_keyvalue 
+  WHERE tablename = p_tablename 
+    AND fieldname = p_fieldname;
+  
+  -- 根據查詢結果返回資料
+  IF v_count > 0 THEN
+    -- 返回指定表名和欄位名的鍵值對
+    SELECT 
+      keyid AS `value`,
+      keyvalue AS `label` 
+    FROM zen_keyvalue 
+    WHERE tablename = p_tablename 
+      AND fieldname = p_fieldname;
+  ELSE
+    -- 返回默認欄位名的鍵值對
+    SELECT 
+      keyid AS `value`,
+      keyvalue AS `label` 
+    FROM zen_keyvalue 
+    WHERE tablename = 'xxxx' 
+      AND fieldname = p_fieldname;
+  END IF;
+END //
+
+DELIMITER ;